sharing. If you are sharing your girl with another girl okay, but most sharing tags are for sharing with other men, NO THANKS the only dick getting near my girls is mine.
NTR, Scat, I never understood the appeal of it and I just find it gross, honestly any sort of bodily waste, I've not seen it be a tag yet but vomiting would also wig me out, though I can kiiiiinda barely tolerate watersports, for example if there is a scene where a someone takes a piss and it shows it off, ok sure what ever it's annoying but I won't freak out over it, but once we get into the realm of golden showers and drinking? hell nah, sorry but definitely not my thing.
Another one is necrophilia, that one is a bit strange for me, because technically some people would consider certain undead to be necro, such as vampires and ghouls, which I can be into, but a non-animated rotting corpse that's been in the ground for a while? that is a big no for me, although I will admit, sometimes when I'm feeling bored and I'm playing Skyrim with the defeat mod, I'll turn on necro and use it on fresh kills sometimes just for the hell of it.
TBH I hate ALL of those tags except female protagonist (in the rare cases she isn't made a victim in some way), and bimbo (when it doesn't involve duckfaces or giant tits/asses.)